Electromagnetic device.



B. 'SOLDATENGOW ELBGTROMAGNETIG DEVICE. APPLICATION FILED HALBQBO., 1912.

'Patented July 30, 1912.

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. Fig-.1

'Patented July 30,1912.

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BASILE SOLDATENCGW', OF PARIS, FRANCE.

ELECTROMAGNETIC DEVICE.

' incassi'.

Specication of Letters Patent.

Patented July 30, 1912.

Qrgnalapplicetion led February 5, 193.2, Serial No. 675,400. Divided. and this applicationvled March f Se', una. sensi un. 687,494.

To all 'whom/'15 may concern:

Be it known that BAsiLii SoLm'raNooW,

of 37 Rue La Prouse, Paris, France, iave inventedcertain new and useful Improvements in and Relating to Improved Electromagnetic Devices, of which the following is i a specification. l

The present invention relates to an electro-magnetic device having a variable action, and it is intended to enable dii'l'erent and ydistinct elects to be obtained .by thenction of a single solenoid and a single electric circuit.

In the accompanying drawings which show anlexaniple of the Way in which the invention may be carried into effect: Fig tired is a diagral'nmatic view of' the system; Figs. 2te 4 illustrate an apparatus embody ing the .invention at different stages in its operation. y t l I -I The apparatus according to the invention consists (Fig. l) of a solenoid A to which current is supplied by an electric circuit B (the source of current being at l). The circuit B is divided outside the solenoid. and includes in one of lthe divisions C" a switch or other device D which only per-- mits suoli, current to pass that the magnetic field generated shall be suilicient to produce .30 a given attraction or magnet-ization of the core G. in the other division of the circuit 'E is inserted a, switch or other device which only permits such current to. .that the magnetic field generated shall be Sufficient to( cause asironger attraction or magnetization than the irstn 'for' the purpose of' obtaining by Vmeans oit a single solenoid and a single electric circuit diiderent "nd distinct eirects. 40 f The, hpafratus act-s as follows, supposing' that. ore G is attached to a fixed point J by means of a spring H whose tension. is suitably adjusted: When closing` the switch l) a inagneticield is produced inthe solenoid which attracts the core G and tensions the spring H. switchl l) is opened the -inagnetic field disappears and the sprin contracts and pulls up the core Gr. lilccts of the saine kind are obtained with the 5.0 switch F. It' the current is only allowed to pass for a very short time, the magnetic 'eld produced will be very Weak. It, on the N contrary, the period during which the cui@ rent passes is longer the magnetic lield will '55 be incre intense. ItA will therefore be seen i that by suitably acting upon. the tivo v switches either simultaneously or succes.- sively, magnetic fields of different intensities can be produced, and these magnetic fields will cause a greater or smaller inagnetization ofthe core Gr, resulting in a succession of reciprocatory inovementsof'the, said core in combination with the spring H simultaneously by the attraction orreleasev t of organs Whose Weight and position are de- '65 termined' according as the magnetic field created is sufficient or not to influence them.

ln practice the arrangements shown in Figs. 2 to #l can be used. a represents al i solenoid or electro-magnet having a stationary core l) and a movable core' c. One of the divisions of the electric circuitv is constitiited by wii'e al, starting from the source ci current c and having a suitable switch f, a bracket g on which is pivoted, at li, a conducting vlever c' having a spring contact member j, which latter can cont-act with a conducting lever m mounted in a conducting bracket m connected by Wire 0 to the A solenoid which finally is connected tothe source of current by the Wire .v. Avnon-con-- y ducting extension m of lever m is pivoted y at its extremity to the movable core c@ The contact member y' is mounted in a casing which can be moved along the lever z'. The 85 latter carries an insulating piece p placed between an adjustable abutment g, mounted on the ond of the lever m, and a second adinstable stop` zr. A. counterweight 8 Whose position canl be adjusted is mounted on the other end of lever and returning,` springs z5 t and u are fitted on levers z' and wwrcspec* tively. The second division of the circuit is constituted by the wire fw connecting the two points fc and o of the circuit and including a switch r c ln Fig. Q, the switch is open (the` i" usual l-:ey f being depressed) and the Cir-v cuit is the following; wire (Z, bracket g, lever vf, spring` contact j, lcvcr m, bracket n, wire o, thc winding of the solenoid a and Wire o. The n'iovable core is thereby attracted and together withlevcr m, mf," takes up the position shown in Fig. The stop g raises tlieinsulating' block ,1J and swings the lever i and thereby removes contact from lever m and' interrupts the current. llic coi-e .7 now no longcif=-atti1act-erlxand the springs z and u return the correspoil-\ ing levers m and z' into 'the positions shown mi in Fig. 2, thereby again closing 'the circuit, in that Contact j iiiaies Contact, iiitli leverm. By this ineans the core c is again attracted, which attraction again breaks the circuit, and this cycle ot operations eoiitii'ines indeiinitely. in' this way a rapid piiisai'iory movement oi"- tlie nio'iizible core c obtaived by the rapid succession of opening; ond elosor" the Contact makin and bre gf; de-

i A f ie elo? "ne *folliriiing circuit formed: wire d, branch e? switch 2, Wire oj solenoid and Wire "a tlierel prode ing in the solenoid a niag- 'netic ield Whose intensity can be i'egiilateil ttor instance bythe time during which the currentpasses) so that it. is greater than that ot the field produced by the tiret branch. Therefore by closing' the siiteh dni-iii tlie operation of' the Contact making ant breaking n'ieciiaiiisin j m. the more intense tield generated by will canse the ino"- able core c to be stopped or lield, While at the saine time iiiagnetizing` the core more strongly. The extent and. duration or" the iiioieiiiciits of tbe core .f2 can be regula" li by adjusting; the stope y and fr and the coniiterweiglit s.

'The solenoidL or electro replaced by any minding or coil creating a ii; .giietie Field of feeding i. ooi-e or arniatiire.

The invention can be applied to the aetnation olf apparatiie of all liiiidsa or t the production of electrical, eecti' iiiiagiietie, or mechanical s. in an application for patent another dale herewith7 bearing Ser. No. G'5,-it00, have shown one 'of the uses to which the arrangement niay be put.

lVliat claim is:

l. In an electro-iiiagiiet dei/ice having a variable action, solenoid coil, stationary and n'iovable Cores within. the coil, and the latter of which is actuated by the coil7 means forming a circuit for feeding the coil, which circuit is divided outside tlie'coil, nieaiis oriiiing part ot' one of the branches of said mee-,ew

whereby to intensify the coil over of relatively short duration and thus nited actuation oit the movable core, vvvitch in the other branch of the cir and. a enit, all tor the purpose of obtaining different and distinct elieets hy means: of a sine-lo solenoid and a single. electric circuit.

in an electro-magnet dei/ice having a variable action. a solenoid coil stationarv i gl ii'iovable cores Within the coil, and thev by means of a single solenoid and :i sineli, electric circuit.

in an electro-magnetic device liziying a variable action, a solenoid coil, stationary and movable cores within tbe coil, the niovable eore being disposed adjacent, the inner end of the stationary core and being actuated by the coil, ineaiis :forming a circuit for dingl the coil, which circuit is divided outside of the coil, ineans forming part of one or' the branches .of said circuit whereby to intensity the coil over periods o t' relatii'ily short duration and thus canse limited actuation of the movable core, a switch in the other branch of the circuit, and a movable armature arranged adjacent the outer engl of the stationary core and adapted to be actuated thereby for the purpose described. In testimony Whereoic I have hereunto placed my hand at Paris (France), this fifteenth day-of March 1912.

oUis CoQi'iiuiA'r, LUGIEN ll/iiiifriaiioiin. 

